The map below depicts data from the National Hydrography Dataset on the Island on Oahu, and focuses on Central Oahu. Use the buttons at the top of the map to display NHD layers. The legend on the left side of the screen will display corresponding codes/colors for respective layers. You can click on any point or layer on the map to review metadata for locations. If you have any questions or concerns, please contact GIS specialist, Linda Koch (lkoch@hawaii.edu) or your portal administrator (coryy@hawaii.edu). For full screen CLICK HERE.